The most important energy news in a decade is in a book, and it’s online at www.withouthotair.com. The author, David J.C. McKay, is a professor of physics from Cambridge University. He tells it like it is without prejudice or agenda. More than 300 pages are packed with quantitative data without (almost) a value judgment. We all know carbon-based fossil fuels eventually must be abandoned. Here is a road map. Will it be solar, wind, geothermal, nuclear, tidal, lifestyle or whatever?